Mark VII V8-302 5.0L VIN F FI (1987)
Cruise Control Module: Testing and Inspection
Use only a voltmeter of 5000 ohm/volt rating or higher when performing the following amplifier test.
``On'' Circuit Test
1.
Turn ignition ``On.''
2.
Connect a voltmeter between 296 and ground at the amplifier. Check battery voltage.
3.
Connect a voltmeter to circuit 151 and ground at the amplifier. Voltmeter should read battery voltage when speed control switch is ``On,''
depressed and held. If there is not voltage, refer to ``Control Switch Test.''
4.
Release ``On'' button. Voltmeter should read approximately 7.8 volts, indicating the ``On'' circuit is engaged. If voltmeter reads zero, check ground
and amplifier. Also check the fuse and circuit breaker.
``Brake'' Circuit Test, 1984---87 All Models
1.
Connect an ohmmeter between red/light green wire and ground.
2.
Resistance should measure less than 5 ohms.
3.
If resistance is greater than 5 ohms, check for burned out stop lamps, improper wiring or clutch malfunction.